<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>图片跟随鼠标指针移动</title>
    <style>
        img{
            position: absolute;
            top: 2px;
        }
    </style>
</head>
<body>
    <img src="OIP-C.jpg" alt="">
    <script>
        let pic = document.querySelector('img');
        document.addEventListener('mousemove',function(e){
            let x = e.pageX;
            let y = e.pageY;
            pic.style.left = x - 50 +'px';
            pic.style.top = y - 40 + 'px';
        });
    </script>
</body>
</html>